"subdirectory not found", since top-level trouble is now serious.
(dircolors invocation): Quote argument to eval. Problem reported
by Stephane Chazelas.
@display
0 success
-1 minor problems (e.g., a file could not be found)
+1 minor problems (e.g., a subdirectory was not found)
2 serious trouble (e.g., memory exhausted)
@end display
Typical usage:
@example
-eval `dircolors [@var{option}]@dots{} [@var{file}]`
+eval "`dircolors [@var{option}]@dots{} [@var{file}]`"
@end example
If @var{file} is specified, @command{dircolors} reads it to determine which